.loginWrap{
    width: 500px;
    height: 300px;
    background: #FFF;
    border-radius: 30px;
    padding: 20px;
    border: 1px solid dodgerblue;
    h3{
        text-align: center;
    }
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}